(A) It shall be unlawful for any two (2) or more persons within the City, to assemble together for any unlawful purpose, or who, being assembled to act and concert to do an unlawful act, with force and violence against the property of the City or the person or property of another, or against the peace or to the terror of citizens or other persons or to make any movement or preparation therefor.
(B) It shall be unlawful for any person knowingly to suffer or permit any assembly for the purpose of committing any unlawful act or breach of peace, or any riotous, offensive or disorderly conduct, in or upon premises owned or occupied by him, or under his control within the City. (1979 Code)